Which of the following is the general solution of the differential equation dy dx equals the quotient of 4 times x and y?

y2 = x2 + c

y2 = 2x2 + c

y2 = 4x2 + c

x2 − y2 = c

In the first triangle 80+20+p=180 (since sum of all angles of a triangle is 180)so p= 80also in second triangle 55+45+q=180 (since sum of all angles of a triangle is 180)so q=80so we can conclude that p=80 degrees q=80 degrees so p=q=80 degreeshence option b is correct

The answer is the third choice